Coil balance replacments for double hung vinyl winodws

Question

Good day,

I am looking to replace ALL the coil balances/housing pivots to my windows and just wanted to verify the exact parts I need.

I have four windows that are 25 27/32 W X 23 23/32 H. I would like to replace the top and bottom, left and right balances/housing pivots.

I have three other windows but not exactly sure of the size. Does this matter or are the coil balances/housing pivots the same?

The actual coil that came out of the housing has a number 7 on it but engraved has what looks like 8F. The housing itself has what looks like PAT5,353,548.

Bob · Accepted Answer

Thanks for posting. See our 15-087 Coil Housing Pivot as well as our 15-086 Tandem Coil Housing. This housing assembly is compatible with our Series 180 Coil Springs. Check all the coil springs for stamps to see what spring weights you need. I'd trust the engraved '8' over the 7 that looks written on the tape, which would indicate it's an S180-8. But if you're uncertain, or if the other springs are missing stamped numbers, weigh your window sash. Provide that precise weight to us, as well as the number of coil springs on each side of the window sash, and we'll be able to help you find what you need.